I need some Feat Advice

[Altus Lucrim]

I have a level 11 Wizard who has a suddenly available feat slot that lets say I didn't plan for. Here is the list of feats I currently have:
Acadamae Graduate, Augment Summoning, Combat Casting, Greater Spell Focus (Conjuration),
Minor Spell Expertise (Mage Armor) (2/day) (Sp), Opposition Research, Spell Focus (Conjuration), Still
Spell, Superior Summoning, Toughness

General thing he does is summon and he also sometimes binds outsiders. Any advice would be helpful here. I also will say that this is a PFS character, so Level 12 will be all he matters for, so I need a feat that helps now, not one that builds for something nicer down the road.

[Snow_Tiger]

You may want to try meta magic feats like empower or maximize to get more summons from your lower level summon spells. I've been thinking about doing that with my Druid for a while now.

[Altus Lucrim]

I don't think that there is a situation in which I would prefer to have more creatures a d4+2 from the 4 list is one thing, but a (d4+2)x1.5 from the level 2 list is nowhere near as good.

[Samasboy1]

Extend spell can be useful for buffs and summons.

[keerawa]

How about Fast Study for flexibility?

[Greylurker]

Spell Penetration could help with the Binding if you are worried about dealing with demons and such.